How fast the the earth rotate in one minuet?

Question

Is it possable to difine this answer to at least 6 places and what is unique about this question?

Answer 1

The circumference of the Earth at the equator is 25,000 miles. The Earth rotates in about 24 hours. Therefore, if you were to hang above the surface of the Earth at the equator without moving, you would see 25,000 miles pass by in 24 hours, at a speed of 25000/24 or just over 1000 miles per hour.

You asked if you could define this answer to at least 6 places and the answer to that question is, yes you can define the speed to 6 places. The way to do this tis simply to multiply by cosine of your latitude to see how fast the Earth is rotating where you are. So pick 6 different lattidute points and do the math.

You also asked what was unique about the question and I'd guess that what your teacher is looking for is that "how fast" is a relative term. The Earth is doing a lot more than rotating, although that is certainly the motion we notice most, because day follows night as a result. We also orbit the Sun once a year. The circumference of the Earth's orbit is about 940 million kilometers, so if you divide that by the hours in a year you will get our orbital speed in kilometers per hour. We are also moving with the Sun around the center of our galaxy and moving with our galaxy as it drifts through intergalactic space, and it is also possible that our entire universe is also spinning or travelling. So even though we can give you the answer to how fast the earth rotates (on it's axis), no one has any CLUE at all as to how fast the earth is actually rotating from the perspective of someone outside our universe looking in.

Answer 2

The answer depends on what latitude you are measuring,
to six places.

Since the earth is an oblate spheroid it will rotate at different rates at different latitudes.
For example at the equator the circumference is approximately 25,000 miles so 25,000/24 hrs= speed in MPH at the equator.

An easier way to approximate at your location is, the earth rotates approximately 15 deg/hr. So figure out the distance 15 deg is from a map at your latitude and you have the speed at that latitude. The earth changes speed because of wobble, but we won't go there today. What is unique is your use of English.

Answer 3

when all the trees are cut down the average radius of the earth will increase just by a very negligible quantity of the order of 10^-8 or 10^-9.This change will not make the earth to rotate much fast as the mass of the earth is very large.Even the change in speed is very small it cannot be measured at all.

Answer 4

The earth rotates around its own axis (once every 24 hours) but the 'local speed' depends on your latitude. The equator has to travel a greater distance, so it goes faster than the North Pole and South Pole, which just slowly pivot.
The length of Earth's equator is about 40,075.0 km, or 24,901.5 miles, according to Wikipedia. To go full circle in 24 hours, that's 1,037.5625 mph, or 17.292708 miles per minute.
At the same time however, the Earth rotates around the sun (once a year).
And our entire solar system rotates around the center of our galaxy.
In all, we should all get a speeding ticket.

Answer 5

The Earth rotates approximately 17.270033 miles in one minute or 1/4 of one degree every minute. Hard to tell what's unique about this question, but it can be answered to at least six decimal places because the equation involves finding the circumference of the Earth, which involves multiplying the Earth's diameter (approximately 7,916 miles) by pi, which is 3.1415927 to seven decimal places